Search Results for author: Varun Ravi Kumar

Found 27 papers, 4 papers with code

DaF-BEVSeg: Distortion-aware Fisheye Camera based Bird's Eye View Segmentation with Occlusion Reasoning

no code implementations9 Apr 2024 Senthil Yogamani, David Unger, Venkatraman Narayanan, Varun Ravi Kumar

We implement a baseline by applying cylindrical rectification on the fisheye images and using a standard LSS-based BEV segmentation model.

Scene Understanding Segmentation +1

Neural Rendering based Urban Scene Reconstruction for Autonomous Driving

no code implementations9 Feb 2024 Shihao Shen, Louis Kerofsky, Varun Ravi Kumar, Senthil Yogamani

In particular, our method estimates dense and accurate 3D structures and creates an implicit map representation based on signed distance fields, which can be further rendered into RGB images, and depth maps.

3D Object Detection 3D Reconstruction +5

Multi-camera Bird's Eye View Perception for Autonomous Driving

no code implementations16 Sep 2023 David Unger, Nikhil Gosala, Varun Ravi Kumar, Shubhankar Borse, Abhinav Valada, Senthil Yogamani

Surround vision systems that are pretty common in new vehicles use the IPM principle to generate a BEV image and to show it on display to the driver.

Autonomous Driving Sensor Fusion

LiDAR-BEVMTN: Real-Time LiDAR Bird's-Eye View Multi-Task Perception Network for Autonomous Driving

no code implementations17 Jul 2023 Sambit Mohapatra, Senthil Yogamani, Varun Ravi Kumar, Stefan Milz, Heinrich Gotzig, Patrick Mäder

We achieve state-of-the-art results for two tasks, semantic and motion segmentation, and close to state-of-the-art performance for 3D object detection.

3D Object Detection Autonomous Driving +7

X$^3$KD: Knowledge Distillation Across Modalities, Tasks and Stages for Multi-Camera 3D Object Detection

no code implementations3 Mar 2023 Marvin Klingner, Shubhankar Borse, Varun Ravi Kumar, Behnaz Rezaei, Venkatraman Narayanan, Senthil Yogamani, Fatih Porikli

Specifically, we propose cross-task distillation from an instance segmentation teacher (X-IS) in the PV feature extraction stage providing supervision without ambiguous error backpropagation through the view transformation.

3D Object Detection Instance Segmentation +3

X3KD: Knowledge Distillation Across Modalities, Tasks and Stages for Multi-Camera 3D Object Detection

no code implementations CVPR 2023 Marvin Klingner, Shubhankar Borse, Varun Ravi Kumar, Behnaz Rezaei, Venkatraman Narayanan, Senthil Yogamani, Fatih Porikli

Specifically, we propose cross-task distillation from an instance segmentation teacher (X-IS) in the PV feature extraction stage providing supervision without ambiguous error backpropagation through the view transformation.

3D Object Detection Instance Segmentation +3

X-Align: Cross-Modal Cross-View Alignment for Bird's-Eye-View Segmentation

no code implementations13 Oct 2022 Shubhankar Borse, Marvin Klingner, Varun Ravi Kumar, Hong Cai, Abdulaziz Almuzairee, Senthil Yogamani, Fatih Porikli

Bird's-eye-view (BEV) grid is a common representation for the perception of road components, e. g., drivable area, in autonomous driving.

Autonomous Driving Segmentation

Surround-View Cameras based Holistic Visual Perception for Automated Driving

1 code implementation11 Jun 2022 Varun Ravi Kumar

The human eye is one of the most sophisticated developments of evolution, but it still has defects.

Decision Making Multi-Task Learning +1

Detecting Adversarial Perturbations in Multi-Task Perception

1 code implementation2 Mar 2022 Marvin Klingner, Varun Ravi Kumar, Senthil Yogamani, Andreas Bär, Tim Fingscheidt

In this paper, we (i) propose a novel adversarial perturbation detection scheme based on multi-task perception of complex vision tasks (i. e., depth estimation and semantic segmentation).

Adversarial Attack Depth Estimation +1

A Hybrid Sparse-Dense Monocular SLAM System for Autonomous Driving

1 code implementation17 Aug 2021 Louis Gallagher, Varun Ravi Kumar, Senthil Yogamani, John B. McDonald

In this paper, we present a system for incrementally reconstructing a dense 3D model of the geometry of an outdoor environment using a single monocular camera attached to a moving vehicle.

Autonomous Driving Depth Estimation +3

An Online Learning System for Wireless Charging Alignment using Surround-view Fisheye Cameras

no code implementations26 May 2021 Ashok Dahal, Varun Ravi Kumar, Senthil Yogamani, Ciaran Eising

In this work, we propose a system based on the surround-view camera architecture to detect, localize, and automatically align the vehicle with the inductive chargepad.

Semantic Segmentation

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